sapwood_specific_hydraulic_conductivity
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- Label: Sapwood specific hydraulic conductivity (Ks)
- Entity URI: https://w3id.org/APD/traits/trait_0021014
- Type: numeric
- Definition: A stem [PO:0009047] water transport [GO:0006833] trait which is a measure of the rate [PATO:0000161] of water [CHEBI:15377] movement [NCIT:C37994] through a stem under a specific [NCIT:C38024] driving force [PATO:0001035] (water potential [EnvThes:22311] gradient [NCIT:C70693]), normalised to the diameter [PATO:0001334] of water transport tissues [CARO:0000043] and accounting for the stem length [PATO:0000122]. It is calculated as the ratio [PATO:0001470] of the water flow [NCIT:C41141] rate through the stem segment (kg/s) to the water potential gradient across the stem segment (MPa), divided by the sapwood [PO:0004513] cross-sectional [NCIT:C63795] area [PATO:0001323] (m2), then multiplied by the path length measured (m).;Ks; Measure of the efficiency of water flow through a stem segment normalised to the sapwood cross-sectional area across which the flow is measured. It is calculated as the ratio of the water flow rate (kg/s) to the water potential gradient across the stem segment (MPa), divided by the sapwood cross sectional area (1/m2), then multiplied by the stem length (m).
- Additional comments: None
- units: kg/m/MPa/s
- allowable range: 0.01 - 500 kg/m/MPa/s
See the AusTraits Plant Dictionary (https://w3id.org/APD/traits/trait_0021014) for additional information about this trait.
Coverage
For this trait, AusTraits includes a total of 567 records. This includes:
- data for 200 species.
- data for 37 families.
- data from 12 datasets (see the portal Citations tab for a list of sources)